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#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
import sys
import unittest
from pyasn1.codec.der.decoder import decode as der_decoder
from pyasn1.codec.der.encoder import encode as der_encoder
from pyasn1_modules import pem
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc5913
from pyasn1_modules import rfc5755
from pyasn1_modules import rfc3114
class ClearanceTestCase(unittest.TestCase):
cert_pem_text = """\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"""
def setUp(self):
self.asn1Spec = rfc5280.Certificate()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.cert_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(substrate, der_encoder(asn1Object))
cat_value_found = False
for extn in asn1Object['tbsCertificate']['extensions']:
if extn['extnID'] == rfc5913.id_pe_clearanceConstraints:
self.assertIn(extn['extnID'], rfc5280.certificateExtensionsMap)
ev, rest = der_decoder(
extn['extnValue'],
asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']])
self.assertFalse(rest)
self.assertTrue(ev.prettyPrint())
self.assertEqual(extn['extnValue'], der_encoder(ev))
for c in ev:
if c['policyId'] == rfc3114.id_tsp_TEST_Whirlpool:
for sc in c['securityCategories']:
self.assertIn(sc['type'], rfc5755.securityCategoryMap)
scv, rest = der_decoder(
sc['value'],
asn1Spec=rfc5755.securityCategoryMap[sc['type']])
for cat in scv:
self.assertIn('USE ONLY', cat)
cat_value_found = True
self.assertTrue(cat_value_found)
def testOpenTypes(self):
substrate = pem.readBase64fromText(self.cert_pem_text)
asn1Object, rest = der_decoder(
substrate, asn1Spec=self.asn1Spec, decodeOpenTypes=True)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(substrate, der_encoder(asn1Object))
cat_value_found = False
for extn in asn1Object['tbsCertificate']['extensions']:
if extn['extnID'] == rfc5913.id_pe_clearanceConstraints:
self.assertIn(extn['extnID'], rfc5280.certificateExtensionsMap)
ev, rest = der_decoder(
extn['extnValue'],
asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']],
decodeOpenTypes=True)
self.assertFalse(rest)
self.assertTrue(ev.prettyPrint())
self.assertEqual(extn['extnValue'], der_encoder(ev))
for c in ev:
if c['policyId'] == rfc3114.id_tsp_TEST_Whirlpool:
for sc in c['securityCategories']:
self.assertIn(sc['type'], rfc5755.securityCategoryMap)
for cat in sc['value']:
self.assertIn('USE ONLY', cat)
cat_value_found = True
self.assertTrue(cat_value_found)
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == '__main__':
unittest.TextTestRunner(verbosity=2).run(suite)
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